#51E391#51E391

#51E391 is a light, vivid green. Relative luminance 0.587; OKLCH L 81.8% C 0.171 H 154.9°. Best body text is #000000 at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#51E391
RGB	rgb(81, 227, 145)
HSL	hsl(146, 72%, 60%)
HSV	hsv(146, 64%, 89%)
CMYK	cmyk(64.3%, 0%, 36.1%, 11%)
CIE-LAB	lab(81.14, -57.05, 28.91)
CIE-LCH	lch(81.14, 63.96, 153.13°)
OKLab	oklab(81.78% -0.1545 0.0725)
OKLCH	oklch(81.78% 0.171 154.9)
XYZ	xyz(35.9701, 58.7281, 36.2226)
Luminance	0.5873 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E391 #E351A3

analogous

#5AE351 #51E391 #51E3DA

triadic

#51E391 #9151E3 #E39151

tetradic

#51E391 #515AE3 #E351A3 #E3DA51

square

#51E391 #515AE3 #E351A3 #E3DA51

split-complementary

#51E391 #DA51E3 #E3515A

monochromatic

#1AA055 #22D570 #51E391 #86EBB2 #BAF4D4

Accessibility & contrast

On white

1.65

#51E391 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.75

#51E391 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E391

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E391	#FFFFFF	#000000	##000000
##51E391	1.00	1.65	12.75	12.75
#FFFFFF	1.65	1.00	21.00	21.00
#000000	12.75	21.00	1.00	1.00
##000000	12.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E2D28C

Deuteranopia (green-blind)

#CFC496

Tritanopia (blue-blind)

#00E1CE

Achromatopsia (no color)

#C9C9C9

Design tokens & code

CSS

--color: #51e391;
/* rgb */ color: rgb(81, 227, 145);
/* oklch */ color: oklch(81.8% 0.171 154.9);

Tailwind

colors: {
  custom: {
    50: '#91edb2',
    500: '#51e391',
    950: '#000000',
  },
}

SCSS

$custom: #51e391;
$custom-light: #91edb2;
$custom-dark: #000000;

JSON

{
  "hex": "#51e391",
  "rgb": {
    "r": 81,
    "g": 227,
    "b": 145
  },
  "hsl": {
    "h": 146.301,
    "s": 72.277,
    "l": 60.392
  },
  "oklch": {
    "l": 0.8178,
    "c": 0.17063,
    "h": 154.9
  },
  "luminance": 0.58732
}

Semantic roles & 50–950 ramp

primary

#51E391

secondary

#A33573

accent

#117FD4

background

#FCFFFD

surface

#F5FEF7

border

#CFD6D0

text

#0E1611

muted

#7F8581

Preview Lab

Preview with #51E391

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →